One hundred children will be recruited from the UNMC Pediatric Dentistry clinic. Eligible children will be selected from the 4-6 year group who are scheduled for routine dental restorative treatment and who have or have never received a dental injection. Each patient will randomly participate in either a control or experimental condition. The device will be attached for both conditions. During the control injection, the dentist will perform the dental injection as usual. During the experimental injection, the dentist will activate the attached device and perform the injection. Immediately following each injection, the patient will rate the pain on a visual analog scale and a trained observer will rate the child's behavior on a Frankl behavior scale. A videotape of the procedure will be reviewed by an independent dentist who will evaluate the child's response and any perceived disruptive behavior. This observer will be blind to whether the instrument is functioning.